Spider phylogenomics: untangling the Spider Tree of Life

Spider phylogenomics: untangling the Spider Tree of Life

Spiders (Order Araneae) are massively abundant generalist arthropod predators that are found in nearly every ecosystem on the planet and have persisted for over 380 million years. Spiders have long served as evolutionary models for studying complex mating and web spinning behaviors, key innovation and adaptive radiation hypotheses, and have been inspiration for important theories like sexual se...

­Comparative spigot ontogeny across the spider tree of life

Spiders are well known for their silk and its varying use across taxa. Very few studies have examined the silk spigot ontogeny of the entire spinning field of a spider. Historically the spider phylogeny was based on morphological data and behavioral data associated with silk. Recent phylogenomics studies have shifted major paradigms in our understanding of silk use evolution, reordering phyloge...

Cutaneous necrosis following brown recluse spider bite

Spider-Like Coronary Anatomy; the True Spider!

A 55 year-old man was admitted to the hospital with typical chest pain; the ECG and cardiac biomarkers were normal. He had a history of hypertension and coronary angiography (CAG) a year ago due to unstable angina pectoris and a drugeluting stent was implanted at the left anterior descending (LAD) coronary artery. CAG was performed at admission due to persistent chest pain and a single right co...

Edge pair sum labeling of spider graph

An injective map f : E(G) → {±1, ±2, · · · , ±q} is said to be an edge pair sum labeling of a graph G(p, q) if the induced vertex function f*: V (G) → Z − {0} defined by f*(v) = (Sigma e∈Ev) f (e) is one-one, where Ev denotes the set of edges in G that are incident with a vetex v and f*(V (G)) is either of the form {±k1, ±k2, · · · , ±kp/2} or {±k1, ±k2, · · · , ±k(p−1)/2} U {k(p+1)/2} accordin...